20218402808

素因数分解:

$2^3\times {\mathrm{971}}^1\times {\mathrm{2602781}}^1$

素因数の和:2603758

約数の個数: 16

約数和(自身を含む): 37948561560

約数和(自身を除く): 17730158752

約数列:

[1, 2, 4, 8, 971, 1942, 3884, 7768, 2602781, 5205562, 10411124, 20822248, 2527300351, 5054600702, 10109201404, 20218402808]

約数ペア:

[(1, 20218402808), (2, 10109201404), (4, 5054600702), (8, 2527300351), (971, 20822248), (1942, 10411124), (3884, 5205562), (7768, 2602781)]